Witherell, Randal
Current rating: 1522
Record: 14-16-5
| Grand Prix Columbus 2010 (legacy) | starting rating: 1417 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 6 | Benanzer, Andrew S (1607) | Won 2-0 | +221439 |
| 2legacy | 46 | Hooper, Pat (1518) | Won 2-0 | +191458 |
| 3legacy | 105 | Johnson, Peter J (1595) | Lost 0-2 | -151443 |
| 4legacy | 125 | Callahan, Chris (1523) | Won 2-0 | +191462 |
| 5legacy | 78 | Benson, Jonathan (1623) | Won 2-0 | +211483 |
| 6legacy | 45 | Kibler, Brian (2095) | Draw 1-1 | +101493 |
| 7legacy | 51 | Boggemes, Kyle (1966) | Draw 1-1 | +81501 |
| 8legacy | 88 | Rogerson, Ian (1688) | Draw 1-1 | +31504 |
| 9legacy | 70 | Gatza, John (1506) | Won 2-1 | +181522 |
| top | average opponent: 1680record: 5-1-3 | new rating: 1522 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1407 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 233 | Bettens, Joshua D (1486) | Lost 1-2 | -171390 |
| 2legacy | 400 | Phelps, Ryan (1481) | Won 2-1 | +201410 |
| 3legacy | 459 | Heard, Derrick (1500) | Won 2-1 | +201430 |
| 4legacy | 328 | Maynard, Pascal (1579) | Won 2-0 | +201450 |
| 5legacy | 208 | Schousboe, Jason (1536) | Lost 0-2 | -161434 |
| 6legacy | 203 | Davis, Josiah A (1516) | Lost 0-2 | -171417 |
| top | average opponent: 1516record: 3-3 | new rating: 1417 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 50 | Robbins, Spencer A (1500) | Lost 1-2 | -171418 |
| 2legacy | 284 | Noelle, Daniel (1482) | Won 2-1 | +191437 |
| 3legacy | 186 | D'Arcy, Ray (1500) | Won 2-1 | +201457 |
| 4legacy | 245 | Stark, Bill (1489) | Lost 0-2 | -181439 |
| 5legacy | 289 | Lassen, Nicholas (1524) | Lost 0-2 | -161423 |
| 6legacy | 271 | Schwarzott, Christopher (1547) | Lost 1-2 | -161407 |
| top | average opponent: 1507record: 2-4 | new rating: 1407 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 1 | Jackson, Matthew (1500) | Lost 0-2 | -171428 |
| 2block | 356 | Lynch, Mike (1482) | Lost 1-2 | -171411 |
| 3block | 365 | Scott, Brad (1464) | Won 2-1 | +191430 |
| 4block | 377 | Price, Gary (1482) | Lost 0-2 | -171413 |
| 5block | 351 | Carroll, Roger (1464) | Won 2-1 | +191432 |
| 6block | 286 | Avetisian, Tigran (1482) | Won 2-1 | +191451 |
| 7block | 211 | Roberge, Mathieu (1563) | Lost 0-2 | -161435 |
| top | average opponent: 1491record: 3-4 | new rating: 1435 | ||
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 206 | Olson, Erik (1500) | Draw 1-1 | 01500 |
| 2sealed | 211 | King, Ryan (1500) | Lost 1-2 | -181482 |
| 3sealed | 312 | Harrell, Chase (1482) | Lost 0-2 | -181464 |
| 4sealed | 353 | Romesburg Jr., Harry (1464) | Lost 1-2 | -181446 |
| 5sealed | 314 | Sheppard, Daniel (1446) | Draw 1-1 | 01446 |
| 6sealed | 265 | O'Hara, Michael J (1410) | Won 2-0 | +171463 |
| 7sealed | 208 | Frost, Brian (1464) | Lost 1-2 | -181445 |
| top | average opponent: 1467record: 1-4-2 | new rating: 1445 | ||